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Suppose she starts at the top of the wave with a speed of 1.7 m/s and moves down the wave until her speed increases to 8.5 m/s. The drop in her vertical height is 2.6 m. If her mass is 59 kg, how much work is done by the (nonconservative) force of the wave?
The objective lens of the refracting telescope at the Lick Observatory in California has a focal length of 57 ft. What is the refractive power of this lens? What focal length (mm) eyepiece would give a magnification of 1000x for this telescope?
Consider a Van de Graaff generator with a 30.0 cm diameter dome operating in dry air. what is the maximum potential energy of the dome
A golf ball of mass 50 g released from a height 1.5m above a concrete floor bounces back to a height of 1.0 m. What is the amount of energy lost during the impact
A metal wire of mass m can slide without friction on two parallel, horizontal, conducting rails. find its velocity as a function of time
Find an average magnitude of the induced emf . A bungee jumper, who's mass is 79 kg, jumps from a tall building. After reaching his lowest point, he continues to oscillate up and down, reaching the low point two more times in 8.2 s.
In one day, a 75 kg mountain climber ascends from the 1500-m level on a verical cliff to the top at 2400m. What is the change in her gravitational potential energy
a an ideal gas occupies a volume of 3.0-cm3 at 20degc and atmospheric pressure. determine the number of molecules of
An electric vehicle starts from rest and accelerates at a rate of 2.4 m/s2 in a straight line until it reaches a speed of 14 m/s. How much time elapses from start to stop
A particle moves horizontally in uniform circular motion, over a horizontal xy plane. What are the coordinates of the center of the circular path
A planet in another solar system orbits a star with a mass of 4.0×1030 kg. At one point in its orbit it is 250×106 km from the star and is moving at 35km/s.Take the universal gravitational constant to be 6.67 × 10−11 m2/s2 · kg andcalculate the se..
Du Pont and net income Ebersoll Mining has $6 million in sales; its ROE is 12 percent; and its total assets turnover is 3.2 . The company is 50 percent equity financed. Illustrate what is its net income?
In a railroad yard, a 3.5×10^4 kg boxcar moving at 6.0 m/s is stopped by a spring-loaded bumper mounted at the end of the level track
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